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Old 02-04-2013, 05:36 PM   #1
bssybeep
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FSWerks Stealth Exhaust in California

qq for anybody who has the FSWerks Stealth exhaust on a 2012 Hatchback in California.

Did the exhaust require you to remove a 2nd cat? I was under the impression, the car only had one cat at the exhaust manifold. But talking to FSWerks, they said there is a 2nd cat further down.

FSWerks said the exhaust replaces everything past the flexible pipe. I tried looking underneath, but couldn't really see if there was a 2nd cat.

Also, have you noticed an improvement in mpg?

thanks


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Old 02-04-2013, 05:53 PM   #2
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Originally Posted by bssybeep View Post
qq for anybody who has the FSWerks Stealth exhaust on a 2012 Hatchback in California.

Did the exhaust require you to remove a 2nd cat? I was under the impression, the car only had one cat at the exhaust manifold. But talking to FSWerks, they said there is a 2nd cat further down.

FSWerks said the exhaust replaces everything past the flexible pipe. I tried looking underneath, but couldn't really see if there was a 2nd cat.

Also, have you noticed an improvement in mpg?

thanks
P-ZEV models have two catalysts, one on the manifold like all 2012+ Ford Foci, and one down stream of this. The majority of 2012+ do not have a second catalyst, but the CA emissions and P-ZEV models do have this. Therefore you would be best advised to go custom and modify only behind the second catalyst.
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Old 02-04-2013, 06:26 PM   #3
bssybeep
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Quote:
Originally Posted by suss6052 View Post
P-ZEV models have two catalysts, one on the manifold like all 2012+ Ford Foci, and one down stream of this. The majority of 2012+ do not have a second catalyst, but the CA emissions and P-ZEV models do have this. Therefore you would be best advised to go custom and modify only behind the second catalyst.
bummer, thanks
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